Update README.md

Author: mevdschee

README.md

@@ -8,8 +8,9 @@ Related projects:
 
   - [PHP-API-AUTH](https://github.com/mevdschee/php-api-auth): Single file PHP script that is an authentication provider for PHP-CRUD-API
   - [PHP-SP-API](https://github.com/mevdschee/php-sp-api): Single file PHP script that adds a REST API to a SQL database.
-  - [PHP-CRUD-UI](https://github.com/mevdschee/PHP-crud-ui): Single file PHP script that adds a UI to a PHP-CRUD-API project.
+  - [PHP-CRUD-UI](https://github.com/mevdschee/php-crud-ui): Single file PHP script that adds a UI to a PHP-CRUD-API project.
   - [VUE-CRUD-UI](https://github.com/nlware/vue-crud-ui): Single file Vue.js script that adds a UI to a PHP-CRUD-API project.
+  - [PHP-CRUD-ADMIN](https://github.com/mevdschee/php-crud-admin): Single file PHP script that adds a database admin interface to a PHP-CRUD-API project.
 
 There are also ports of this script in: